Heater



R. N; MURPHY.

HEATER.

APPLICATlON FILED AUG.25. 1919.

Patented Sept. 28, 1920.

20 i5 75 31 fl 3 SHEETS-SHEET 1- ii 1.2 55 W A 41m R. N. MURPHY.

HEATER.

APPLICATION man AUG-25. 19x9.

1,354,055, Patentedsept. 28,1920.

- 3 SHEETS-SHEET 2.

INl/ENTUT? RUB Eff 77M MURFW R. N. MURPHY.

HEATER. APPLICATION FILED AUG-25,1919.

Patented Sept. 28, 1920.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

HEATER.

Specification of Letters Patent.

Patented Sept. 28, 1920.

Application filed August 25, 1919. Serial No. 319,708.

To all whom it may concern Be it known that I, ROBERT NICHOLAS lilnnrr-rr, a subject of the King of Great Britain, and resident of the city of Ottawa, in the Province of Ontario, Dominion of Canada, have invented certain new and useful Improvements in Heaters, of which the following is a specification.

This invention relates to improvements in heaters, and the objects of the invention are to provide a heater of simple construction which can be utilized both for cooking and for heating water for domestic purposes, and also in a heating installation, to provide means whereby the heater may be efliciently fired so that a combustion of the flue gases will always be completed before the said fuel gases are delivered to the smoke stack, to permit of the heater being utilized with a gas stove during the summer, to provide means for shaking the fire grate, and generally to adapt the several parts of the heater to better perform the functions required of them.

With the above and other objects in view the invention consists essentially of the improved construction hereinafter described in detail in the accompanying specification and drawings.

In the drawings:

Figure 1 is a plan View, partly sectional, of my improved heater.

Fig. 2 is a longitudinal section of the same.

Fig.3 is a transverse section of my im proved heater.

Fig. 4: is a plan view of a heater as seen when utilized with a gas stove.

Fig. 5 is a plan view of an alternative form of heater.

Fig. 6 is a longitudinal section of the heater shown in Fig. 5.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings, A represents a box heater comprising a base 10 supporting the body portion which is formed as a water jacket 11 the body portion being closed at the upper end by a cover 12 formed with two sections hingedly attached to the said body portion so that the sections may be swung around clear of the top of the stoveto give ready admission to the body of thestove.

Each section the cover is provided with i e of rings 18 and at the bank. at

the stove a smoke stack connection 14 is provided. The grate 15 is of the shaker type consisting of a plurality of sections 16 provided with lugs 17 carrying crank members 18 which are connected to a longitudinally extending rod 19. This rod is designed to be reciprocated my means'of a lever 20 pivotally mounted on the side of the heater. The base 10 forms an ash pan and is provided with a suitable door 21 and in the body portion a doorway 22 is provided through which inspection of the fire may be made and this doorway also permits of a poker being inserted into the heater to work up or otherwise attend to the fire when it is found necessary. In the front of the base 4 or ash pan an ash tray 23 is formed so that any cinders falling through the doorway 22 will collect on the said ash pan and be readily removed therefrom. In the interior of the body portion I provide a plurality of brackets 24 adapted to support the interior supply conduits 25 which may be either made solid or form part of the depending tubes 26, the conduits being connected by nipples or other suitable connections used in the art of hot water heating.

The depending tubes 26 are equidistantly arranged around the interior of the body portion 11 and are each provided with baffle wall 27 which extends up into the conduits 25 while the lower end of the said bafile wall terminates adjacent to the lower end of the depending tube to form a U-shaped passageway through which the water will circulate during the process of heating. In the embodiment illustrated I have shown two series of conduits 25 as will be seen by reference to Fig. 1, and those two conduits are spaced from each other, the outer one being spaced from the water jacket 11 so that the depending tubes 26 from these conduits will be spaced from each other and the spaces so formed are designed to form magazines for the reception of the fuel. It will be seen that the spaces 28, 29 and 30 shown in Fig. 1 each represent a magazine to which fuel may be supplied.

The conduits 25 are connected to an inlet pipe 31 at one end and at the opposite end are connected with an outlet pipe 32 the said pipes being connected to the heating system in the household in which the stove is installed. To facilitate providing water for domestic purposes I locate a depending tube pipes 31 and 32 and also the ends of the conduits 25 and these tubes are the facsnnlleof those alreariy described, being provided with a baffle wall such as 1s shown at 27.

In the embodiment illustrated two tubes are shown connected with the inlet pipe 33' and outlet pipe 34 but it will be understood that as many tubes as are necessarywill be provided and to make adequate provision the ends of the conduits 25 may be spaced farther apart to accommodate the necessary amount of tubes for domestic heating purposes without in any way impairing the:

28 between the outer side of the tubes 26;-

and the water jacket. It will thus be seen that the fuel in the spaces 29 and 30 will be red hot sothat as theproducts of combustion pass from the green fire in the magazine or space 2-8 they will have to travel over the incandescent surface of the fuel in the other two spaces so that theflue gases will be totally consumed and the products of combustion ultimately delivered to the outlet 14 will have yielded up a maximum of heat to' the tubes 28 embedded in the fuel of the heater. When the fire again requires attention the attendant will now stoke thespace 29 between the two sets of annular conduits 25 and again the products of combustion from the green the will have to pass. over the red hot fire in the space 30 and the space 28 before it can reach the uptake 14, and again all the products of combustion will have been properly consumed before the smoke leaves the heater and when attending the fire the fuel will be placed in. the space 30. and the products of co1nbustion will have to pass over the fuel in. both thespaces 28 and 29 so that a complete combustion of the flue gases will take place. This type of stoking is carried out when a maximum heating effect is to be obtained.

As above described this feature of. the stoking will be carried out when a maximum heating effect is required from the furnace, but if a light fire isrequired such as e in the early fall or late spring a different depth of fire in the heater will be required 7 in such a manner that a light heating effect will be obtained. A jacket 11 is provided 'with inlet and outlet conduits so that a proper circulation of the water in the jacket will take place and those conduits connected to the heating system of the household in the same manner as the pipes 31 and 32.

It will be readily evident that in using a heater o f this description a maximum heat ing effect, will be obtained by the water cirin Figs. 5 and 6, two rows of tubes 86 and I 3 7 are illustrated, the tubes 36 being connected by means of couplings 38 and each tube is provided with a central baflie wall 39 forming a U-shaped passageway whereby the circulating water is caused to flow downwardly through successive pipes. Each set of tubes 36 and 37 is connected at one end to the water jacket 11 forming a body'portion of the heater and the other end of the series of tubes 36 and 37 extend through the water jacket as shown at 40. The water jacket 11 is provided with an inlet pipe 41 so that the water circulating throu h the system will pass through the pipe 41' into the jacket 11, then through the series of tubes 36 and 37 and be discharged through the outlet pipes 40 which will be connected to the heating system in the house where the heater is installed.

The heater shown'in Figs. 5 and 6 is also of the box type and it should be particularly noted that the series of pipes 36, and 3'? are arranged in parallel relation to the said walls of the heater providing spaces 42 and 43, the former of which are arranged between the water ackets and the tubes, the latter being between the tubes themselves. It will thus be evident that three magazines are provided in this type of heater, namely the spaces 42 and 43 and in stoking this heater the fuel will be delivered to the space 42. When a new stoking is required the space 43 will then be supplied with fuel and in this way the products of combustionwill to a great extent be'consumed before they reach the uptake 44.

It will be seen by comparing Fig. 5 and V Fig. 1 that the latter type of box furnace is not so effective as the first type but it should be remembered that the products of combustion passing fromthe front of the heater as shown by Fig. 5 will thus have to pass over the incandescent fuel in the adjacent spaces to a certain extent sothat a better combustion of flue gases will take place than is obtained in ordinary types of box furnaces at present in use.

Referring now to Fig. 4 an adaptation of my furnace for summer use is illustrated in which gas rings 46 are provided which will be located justunder the top of the box stove. These gas rings are removable and will only be placed within the body of the stove when the stove is being used as a heating system and to facilitate locating these gas rings in position I have provided a pair of orifices 47 at one end of the stove, through which orifices Bunsen burners 48 extend, the said burner being connected to a gas supply pipe 49. All th are provided with tubes 50, the ends of which may be splayed slightly to facilitate engagement With the Bunsen burners 48 and each of the gas rings is formed he heating system has not been illustrated in Fig. 4 as it is thought it might tend to render the arrangement of the stove difficult to understand but it will be readily seen that these rings can be positioned in the stove just under the top thereof with a minimum of labor and after the gas rings have in place the top is then replaced.

As many changes could be made in the above construction, and many apparently Widely different embodiments of my invention, Within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specifification and drawings shall be interpreted as illustrative and not in a limiting sense.

lVhat I claim as my invention is:

1. In a heater, a body portion formed With a Water jacket, Water circulating ele ments located in the heater and spaced from the jacket to provide fuel space between the elements and the Walls of the jacket, an additional fuel space Within the confines of the elements, said fuel spaces being open at the top and designed to be fired alternately as and for the purpose set forth.

2. In a heater, a body portion formed been located e gas rings 26 V by removing the top 12 duit, the said pipes being with a water jacket, a plurality of concentrically arranged fuel magazines including an inner, outer and intermediate magazine, each magazine being open at the top separated by a circulating element and the outer Wall of the outer magazine being formed by the Water jacket, means for supporting the circulating element, the said magazines being designed to be alternately red.

3. In a heater, a body portion formed With a Water jacket, a plurality of magazines in the heater formed by Water circulating elements consisting of conduits having depending tubes provided with internal aflie Walls, the said magazines being open at the top and designed to be alternately fired.

4. In a heater, a body portion formed with a Water jacket, a plurality of Water circulating elements located in the heater in spaced relation forming in conjunction the water jacket fuel magazines open at the top and designed to be alternately fired, and domestic heating elements comprising tubular members located adjacent to the Water circulating elements, as and for the purpose specified.

heater, a body portion formed With a Water jacket, a curvilinear conduit arranged in spaced relation to the walls of the heater forming a plurality of fuel magazines, tubes depending from the conduit, inlet and outlet pipes connected to the conspaced apart, and tubes forming domestic heaters located between the spaced pipes, as and for the purpose specified.

In Witness my hand.

ROBERT NICHOLAS MURPHY.

whereof I have hereunto set 

